WTFFFFFF Alternator wierdness???????
 

I have a NB with a NB alternator.

Today, I swapped alternators because I saw signs that my alternator was dying or weaksauce as indicated by voltage drop under boost.

So I swapped, and took a drive and logged. The new alternator worked great. I stopped to look at the logs and voltage was nice and stable around 14v instead of dropping to 12v.

I peel out and the car starts to miss and run like shi. I pull over and look at my EMS display and see voltage is now at 10.5v I pop the hood and see oops, the battery strap on the alternator fell off because i didn't nut it down.

I fire the car up again and drive off, and despite the strap being attached, the voltage is still 10.5v


WTF????? I have dyno day tomorrow and need to fix this now.

sawzall it off

Alternator needs more turbo.

turbonator?

I have a spare NB alternator. $5000 and you pick up?

that's a steal have him tip you with a blowjob

If you ran for a while off the battery, it'll need to charge, usually 10-20 minutes of driving with a good alternator will charge a battery that barely started the car a few minutes earlier.

Throw the battery on a trickle charger over night and see if it changes.

Fae bring the car to the dyno and we can throw a battery charger on it while it runs.lol

Swapped the nb alt for na alt.

Blah. This self regulatig alt sucks.

When i turn on the lights, voltage drops by .5. Turn on blower and same thing happens.

13v steady my ass.

For the one minute my nb alt worked voltage was steady at 14v even with lights on. Sigh.

seriously I do have a spare alternator. not really for $5000.

didnt we tell you the NA ALT SUCKS?

Argh damn it. In an attempt to make my dyno day i did rewire for the NA alternator. It can be undone, but ugh.

I hope the RX7 alternator doesn't suck because I think I will go to that.

weeks before dyno = do nothing, car runs ok
day before dyno = hey lets swap parts and re-wire stuff

you're either trolling or have serious self-destructive self-sabotaging tendencies.

This is news?